Jason Green
@greenjasonr.bsky.social
Professor of Chemistry/Physics at UMass Boston; jasonrgreen.net
Pinned
Jason Green
@greenjasonr.bsky.social
· Mar 25
Dissipation rates from experimental uncertainty
Motivated by recent experimental advances in active materials, this work reparametrizes the speed limit set by the Fisher information to infer dissipation rates from directly observable quantities wit...
doi.org
New paper: Reparameterizing the speed limit set by the Fisher information, we show how to infer dissipation rates from directly observable quantities without an analytically solvable model or full time-dependent probability distribution.
doi.org/10.1103/Phys...
doi.org/10.1103/Phys...
Reposted by Jason Green
News: opening in my group for a Postdoc coming soon. Research: quantum information scrambling.
August 29, 2025 at 5:56 PM
News: opening in my group for a Postdoc coming soon. Research: quantum information scrambling.
Reposted by Jason Green
The National Science Foundation is awarding new grants at the slowest pace in at least 35 years. The funding decreases touch virtually every area of science — extending far beyond the diversity programs that the Trump administration says it wants to cut.
Trump Has Cut Science Funding to Its Lowest Level in Decades
The lag in funding extends far beyond D.E.I. initiatives, affecting almost every area of science: chemistry, computing, engineering, materials and more.
www.nytimes.com
May 22, 2025 at 7:37 PM
The National Science Foundation is awarding new grants at the slowest pace in at least 35 years. The funding decreases touch virtually every area of science — extending far beyond the diversity programs that the Trump administration says it wants to cut.
Reposted by Jason Green
The US administration is eroding the freedoms on which the nation’s success has been based
https://go.nature.com/4jRfcfs
https://go.nature.com/4jRfcfs
US researchers must stand up to protect freedoms, not just funding
Curtailment of freedoms and disregard for the rule of law in the United States is destroying the ability of science to serve the nation’s, and the world’s, interests. Researchers can take action.
go.nature.com
May 13, 2025 at 2:32 PM
The US administration is eroding the freedoms on which the nation’s success has been based
https://go.nature.com/4jRfcfs
https://go.nature.com/4jRfcfs
Reposted by Jason Green
Want to know more success stories of federally-funded research and everyday life?
Here is a great collection, started by my colleagues here. Amazing things in here. GPS, at-home pregnancy tests, lasers, medical imaging, improved tornado detection...check it out!
publicusaresearchbenefits.com
Here is a great collection, started by my colleagues here. Amazing things in here. GPS, at-home pregnancy tests, lasers, medical imaging, improved tornado detection...check it out!
publicusaresearchbenefits.com
May 12, 2025 at 6:31 PM
Want to know more success stories of federally-funded research and everyday life?
Here is a great collection, started by my colleagues here. Amazing things in here. GPS, at-home pregnancy tests, lasers, medical imaging, improved tornado detection...check it out!
publicusaresearchbenefits.com
Here is a great collection, started by my colleagues here. Amazing things in here. GPS, at-home pregnancy tests, lasers, medical imaging, improved tornado detection...check it out!
publicusaresearchbenefits.com
Reposted by Jason Green
The president's budget proposal cuts billions in funding from the DOE Office of Science, NIST, NASA, and the NSF — but there’s still time to change it. Tell your lawmakers why they should stand up for science using our letter-writing toolkit, targeted to your state: go.aps.org/3RP9EWF
May 2, 2025 at 9:32 PM
The president's budget proposal cuts billions in funding from the DOE Office of Science, NIST, NASA, and the NSF — but there’s still time to change it. Tell your lawmakers why they should stand up for science using our letter-writing toolkit, targeted to your state: go.aps.org/3RP9EWF
Reposted by Jason Green
The National Science Foundation has put a cork in its grantmaking pipeline after billionaire Elon Musk’s Department of Government Efficiency set up shop at the agency this week. scim.ag/4iowX4t
NSF halts grant awards while staff do second review
Action comes after DOGE team arrives at science agency
scim.ag
April 17, 2025 at 4:04 PM
The National Science Foundation has put a cork in its grantmaking pipeline after billionaire Elon Musk’s Department of Government Efficiency set up shop at the agency this week. scim.ag/4iowX4t
Reposted by Jason Green
"Dear Cornell community,
Cornell is aware of media reports suggesting that more than $1 billion in federal grants have been frozen. While we have not received information that would confirm this figure, earlier today Cornell received more than 75 stop-work orders from the Department of Defense ...
Cornell is aware of media reports suggesting that more than $1 billion in federal grants have been frozen. While we have not received information that would confirm this figure, earlier today Cornell received more than 75 stop-work orders from the Department of Defense ...
April 9, 2025 at 3:21 AM
"Dear Cornell community,
Cornell is aware of media reports suggesting that more than $1 billion in federal grants have been frozen. While we have not received information that would confirm this figure, earlier today Cornell received more than 75 stop-work orders from the Department of Defense ...
Cornell is aware of media reports suggesting that more than $1 billion in federal grants have been frozen. While we have not received information that would confirm this figure, earlier today Cornell received more than 75 stop-work orders from the Department of Defense ...
New paper: Reparameterizing the speed limit set by the Fisher information, we show how to infer dissipation rates from directly observable quantities without an analytically solvable model or full time-dependent probability distribution.
doi.org/10.1103/Phys...
doi.org/10.1103/Phys...
Dissipation rates from experimental uncertainty
Motivated by recent experimental advances in active materials, this work reparametrizes the speed limit set by the Fisher information to infer dissipation rates from directly observable quantities wit...
doi.org
March 25, 2025 at 12:52 PM
New paper: Reparameterizing the speed limit set by the Fisher information, we show how to infer dissipation rates from directly observable quantities without an analytically solvable model or full time-dependent probability distribution.
doi.org/10.1103/Phys...
doi.org/10.1103/Phys...
Reposted by Jason Green
We need some accountability here. Who are the administrators within the NSF who did this and under what instructions?
I believe federal FOIA regulations would applied to general communications leading up to this action if not to individual personnel decisions.
I believe federal FOIA regulations would applied to general communications leading up to this action if not to individual personnel decisions.
US science agency reclassifies hundreds of workers as probationary, US lawmaker says
National Science Foundation administrators reclassified hundreds of employees from permanent to probationary status in violation of labor contracts, according to a U.S. lawmaker and agency employee.
www.reuters.com
February 24, 2025 at 3:36 PM
We need some accountability here. Who are the administrators within the NSF who did this and under what instructions?
I believe federal FOIA regulations would applied to general communications leading up to this action if not to individual personnel decisions.
I believe federal FOIA regulations would applied to general communications leading up to this action if not to individual personnel decisions.
New preprint: Dynamical systems that dissipate entropy to the environment tend to contract their phase space. We derived a measure of this entropy flow from a _classical_ density matrix that opens up new ways to model and predict thermodynamic costs.
arxiv.org/abs/2502.09361
arxiv.org/abs/2502.09361
Phase space contraction rate for classical mixed states
Physical systems with non-reciprocal or dissipative forces evolve according to a generalization of Liouville's equation that accounts for the expansion and contraction of phase space volume. Here, we ...
arxiv.org
February 19, 2025 at 3:51 PM
New preprint: Dynamical systems that dissipate entropy to the environment tend to contract their phase space. We derived a measure of this entropy flow from a _classical_ density matrix that opens up new ways to model and predict thermodynamic costs.
arxiv.org/abs/2502.09361
arxiv.org/abs/2502.09361
Reposted by Jason Green
🧪 "Trump administration has frozen research funds, halted health communications and publications, vanished decades of health and behavior data from its websites, terminated federally funded studies ... "
& fired critical medical professionals and scientists.
www.theatlantic.com/health/archi...
& fired critical medical professionals and scientists.
www.theatlantic.com/health/archi...
The Erasing of American Science
How far can the Trump administration bend U.S. research before it breaks?
www.theatlantic.com
February 16, 2025 at 7:12 PM
🧪 "Trump administration has frozen research funds, halted health communications and publications, vanished decades of health and behavior data from its websites, terminated federally funded studies ... "
& fired critical medical professionals and scientists.
www.theatlantic.com/health/archi...
& fired critical medical professionals and scientists.
www.theatlantic.com/health/archi...